Boys with X-ray vision

Dear Duffy, If you sent those drawings home completed, the parents might
blame you for not having control of the class. If you want to send them
home, grab them as soon as you see a sign of an inappropraite gesture on
the paper, ie, you've done your job by stopping them in their tracks, (but
that is only part of the job, you have to get them to get back on task). An
alternative is to announce to the class before starting that the drawings
are going home as a visual progress report, or friendly greeting from the
teacher to parent to establish a rapport. Maybe you can do this in the
beginning of the semester before parent teacher conferences, or right after
parent teacher conferences. Another alternative is to assign partners, who
take turns drawing one another. Maybe the pressure would be greater for
them to not act crudely.
Important note: some states have sexual harrasement laws and gestures,
words, maybe even drawings could bring about law suits. Explain this to the
students.